Web perfecting rotary press



Ap 1937- H. M. BARBER 2,076,932

WEB PERFECTING ROTARY PRESS FiledAug. 10, 1935 Q ATTOBNEYS INVENTOR.

BY i" Patehted Apr. 13, 1937 PATENT OFFICE WEB PERFECTING ROTARY PRESSHoward M. Barber, Pawcatuck, Qomn, assignor to C. B. Cottrell & SonsCompany, Westerly, R. 1., a corporation of Delaware I Application August10, 1935, Serial No. 35,585

. i 2 Claims. (01. 101-179) In high speed web perfecting rotary pressesI where quick drying inks and web-heating and cooling units areemployed, it is very desirable that the several units be so located withrespect to each other as to produce the best results while occupying aminimum amount of space.

The object of my invention is to so locate the printing and combinedheating and cooling units,

minimum travel of the web. I

My invention comprises, generally, first and a second multicolorprinting units, located in line with each other at the opposite ends ofthe press, each printing unit consisting of an impression cylinder andform cylinders (in the present in-- stance four form cylinders) arrangedaround its upperside, inking mechanisms for the form cylinders, firstand second combined heating and cooling units located in substantiallythe same horizontal plane, between and below the printing units, eachcombined heating and cooling unit comprising a heating cylinder and oneor more (in the present instance two) cooling cylinders, and a websupply roll located between and in line with the combined heating andcooling units;

means being provided for passing the web from the supply roll to andthrough the first printing unit, then to and through the first combinedheating and cooling unit, then to and through the second printing unit,then to and through the second combined heating and cooling unit, andfinally directed in the desired direction as, for instance, to a pointoffset from and at right angles to said units.

A practical embodiment of my invention is represented in theaccompanying drawing, in whichthe figure represents a diagrammatic sideelevation of my' invention. The first printing unit is hereinrepresented as a four-color unit, the impression cylinder being denotedby I and its four form cylinders by 2, 3, 4, 5, which form cylinders arearranged around-the upper side of the impression cylinder. Theinkingmechanisms for the four form cylinders are 'denoted by 2a, 3a, 4a,5a,'which inking mechanisms apply the inks to their respective formcylinders in the usual manner. This first printing unit is located atone end of the press.

The second printing unit for perfecting the web is herein represented asa four color unit, the impression cylinder being denoted by 6 and itsform cylinders by I, 8, 9, III, which form cylinders are arranged aroundthe upper side of 55 the impression cylinder. The inking mechanisms forthe form cylinders are denoted by'la, 8a, 9a, Illa, which inkingmechanisms apply the inks to their respective form cylinders in theusual manner. This second unit is located'at the opposite end of thepress.

These twofprinting units are located in line with each other at theopposite ends of the press at the required distance apart and they arealso preferably located in substantially the same horizontal plane.

The first combined heating and cooling unit is herein represented ascomprising a large heating cylinder II and two small cooling cylindersl2, l3,

arranged between the heating cylinder II and the impression'cylinder Iof the first printing unit.

The second combined heating and cooling unit is herein represented ascomprising 'a large heating cylinder l4 and two small cooling cylindersl5, I6, arranged between theheating cylinder i4 and the impressioncylinder 6 of the second printing unit.

These two combined heating and cooling units -are located insubstantially the same horizontal plane between and below the printingunits.

The Web supply roll is denoted by l! and it is located between the firstand second heating an cooling units in line therewith. v I

The web is led'through the press as follows:

The unprinted web passes from the supply roll I! to and .through thefirst printing unit where the web is printed in multicolor upon one sidethereof. The web is then led to and around the heating cylinder H andcooling cylinders l2,

l3 of the first combined heating and cooling unit. 'From thence the webis led to and through the second printing unit where the web is printedthat'the first and second units may be driven separately either for thepurpose of "inaking ready or for permitting a single or two separatenon-perfected multicolor products to be produced.

It is to be understood that guide rolls are provided for passing the webin prescribed paths from the web supplyroll I! to the delivery.

It will also be understood that any suitable heating medium, such assteam, may be supplied to the heating cylinders II and I4 and that anysuitable cooling medium, such as watenmay be supplied to the coolingcylinders i2, i3 and l5, l6.

It will also be understood that any well known or approved quick dryinginks may be used in the printing units.

From the above description it will be seen that I have provided anarrangement of the several units 01' the press whereby the'inks on thei'reshly printed sides of the web may be thoroughly dried with a minimumtravel of the web, the form cylinders of the two printing units at thesame time being so'positioned that ready access thereto may be obtained.

What I claim is:

1. In a. web perfecting rotary press, first and second multicolorprinting units located in substantially the same horizontal plane inline with each other. at opposite ends oi! the press, each printing unitcomprising an impression cylinder v and form cylinders arranged aroundthe upper side thereohilrst and second combined heating and coolingunits located in substantially the same horizontal plane between andbelow the printing units, said heating and cooling units comprising aheating cylinder and one or more cooling cylinders interposed betweenthe impression and heating cylinders, a web supply roll, and means forleading the web through said units and directing the web therefrom.

2. In a web perfecting rotary press, first and second multicolorprinting units located in substantially the same horizontal plane inlinewith each other at opposite ends of the press, each 'printing unitcomprising an impression cylinder and form cylinders arranged around theupper side thereof, first and second combined heating and cooling unitslocated in substantially the same horizontal plane between and below theprinting units, said heating and cooling units comprising a heatingcylinder and one or more cooling cylinders interposed between theimpresslorr and heating cylinders, a web supply roll, and meansfor'leading the web through said units and directing'the web therefromat right angles thereto.

HOWARD M. BARBER.

